| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5428822 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2013 | 7 Pages |
Results of the calculation of the light scattering matrices for systems of stochastic nanosphere clusters are presented. A mathematical model of spherical particle clustering with allowance for cluster-cluster aggregation is used. The fractal properties of cluster structures are explored at different values of the model parameter that governs cluster-cluster interaction. General properties of the light scattering matrices of nanosphere-cluster ensembles as dependent on their mean fractal dimension have been found. The scattering-matrix calculations were performed for finite samples of 103 random clusters, made up of polydisperse spherical nanoparticles, having lognormal size distribution with the effective radius 50Â nm and effective variance 0.02; the mean number of monomers in a cluster and its standard deviation were set to 500 and 70, respectively. The implemented computation environment, modeling the scattering matrices for overall sequences of clusters, is based upon T-matrix program code for a given single cluster of spheres, which was developed in [1]. The ensemble-averaged results have been compared with orientation-averaged ones calculated for individual clusters.
⺠We suggested a hierarchical model of cluster growth allowing for cluster-cluster aggregation. ⺠We analyzed the light scattering by whole ensembles of nanosphere clusters. ⺠We studied the evolution of the light scattering matrix when changing the fractal dimension.
